Printing head for a dot matrix printer



FIG. 1 is a front elevational view of a printing head for a dot matrix printer showing my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is another perspective view thereof taken from the top front;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a bottom elevational view thereof. 

The ornamental design for a printing head for a dot matrix printer, as shown and described. 